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Atrial escape and atrial escape rhythm

When the sinus impulse conduction is inhibited (such as sinus bradycardia, sinus atrial block and sinus arrest), the autonomy of the atrial potential pacemaker is higher than that of the sinus pacemaker, or the sinus impulse cannot be transmitted, the atrial pacemaker can control the atrium and produce atrial escape. When the inhibitory factors of sinoatrial node disappear, sinus rhythm can appear again, and atrial escape disappears. Therefore, atrial escape is a physiological compensatory mechanism. Three or more consecutive atrial escape beats constitute atrial escape rhythm.

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